Clarence V. Russell, 73, of South Sioux City, Nebraska, died in the hospital after undergoing emergency surgery for injuries resulting from a September 25, 1970, shooting incident. Clarence's daughter, Leona McArthur, 51, and Michael Koskovich, 18, both of South Sioux City, also died following the incident. Police said that Leona was slain and her father fatally injured with a shotgun at the Russell residence. Mike Koskovich was killed later in a related incident at his home.

Leona had received a divorce decree on June 4 in District Court and the decree would have been final in December. Her husband, Robert E. McArthur, 50, has only been charged with the murder in the death of his wife.

South Sioux City Police Chief said that police, responding to a disturbance report that night were ordered away from a private residence by a man with a shotgun. He said police followed the man to about six blocks from the residence where he was seen arguing with Marvin Koskovich, the father of Mike. Mike was apparently shot as his father attempted to disarm the suspect. After Robert was arrested, he told authorities that he shot his wife.